问题 单项选择题

全自动车钩与半自动车钩结构上的区别包括()。i解钩气缸ii电钩头ⅲ机械钩头iv对中装置

A、i&ii

B、i&iii

C、i&iv

D、ii&iii

答案

参考答案:A

阅读理解

阅读理解。

     More and more people like bicycling and it is no surprise. It is fun, healthy and good for the

environment. Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads

worldwide today. Bikes can take you almost anywhere, and there is no oil cost!

     Get on a bicycle and ride around your neighbourhood. You may discover something new all

around you. Stopping and getting off a bike is easier than stopping and getting out  of your car.

You can bike to work and benefit (受益) from the enjoyable exercise without polluting the environment.

You don't even have to ride all the way.

     Folding (折叠) bikes work well for people who ride the train. Just fold the bike and take it with you.

You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a

common bike with you when you fly. But be sure to look for information by getting on airline websites.

Not all airlines are bicycle-friendly to travellers.

     Health Benefits of Bicycling:

     It helps to prevent heart diseases. 

     Bicycling helps to control your weight.

     A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year.

     Bicycling can improve your mood (心情).

     Exercise  like  bicycling  has  been  shown  to  make  people  feel  better,  more  relaxed  and self-

confident.

     Bicycling is healthier than drivin

1. From the passage, we know that bicycling is becoming very _____.

A. surprising

B. exciting

C. expensive

D. popular

2. When you are riding your bicycle around your neighbourhood, you may _____. 

A. pollute the environment around

B. find something you didn't notice

C. go everywhere and use a little oil

D. get off your bike and begin to work

3. If you travel with a folding bike, you can fold it and _____.

A. get out of the car

B. take it onto a train

C. put it in your purse

D. go on airline websites

4. One of the benefits from bicycling is that _____.

A. you can fold the bicycle

B. you will be friendly to others

C. you will be more relaxed

D. you may get fatter and fatter

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